Three-cycle stroke two internal combustion engine

Details Three-cycle stroke two internal combustion engine Three-cycle stroke two internal combustion engine

1998-04-08

1999-10-19

McMahon, Marguerite

Internal-combustion engines

Double-acting

F02B 3306

Patent

active

059671033

ABSTRACT:
A three cycle, two-stroke internal combustion engine from which work can be extracted in two directions. In the preferred embodiment, the inventive two-stroke engine is constructed as a cylinder having a reciprocating piston slidably seated therein, with the piston defining a compression and combustion chamber between the cylinder wall and each side of the piston. The two-stroke engine can provide work in bi-directional fashion from the two combustion chambers acting in phase. A piston rod is provided with reciprocating linear motion, and a mechanical converter is used to change the linear movement to rotational motion providing torque from which rotational power can be extracted for machinery. In an alternative embodiment, the cylinder is shaped with a bottom portion which is split into two sections, in which a bifurcated piston is seated in reciprocating fashion. A piston rod extending through the space between the split cylinder sections is driven with conventional side-to-side linear motion, and is connected to a conventional offset crankshaft, to harness the useful work output of the engine. The two-stroke engine is compact in size and more powerful than a similar 4 or 2-cycle engine, since its dual action makes it equivalent to two combined standard engines. The engine also provides a reduction in overall weight, decreasing the weight-to-power ratio, with an increase in fuel efficiency. Recoil impulses from the torque produced are reduced, increasing the engine life.

REFERENCES:
patent: 676523 (1901-06-01), Wood
patent: 3385656 (1968-05-01), Panhard
patent: 4407240 (1983-10-01), Fromson
patent: 4414927 (1983-11-01), Simon
patent: 4913100 (1990-04-01), Eickmann
patent: 5285752 (1994-02-01), Reed et al.
patent: 5676097 (1997-10-01), Montresor

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